Synaeresis serves sometimes to overcome this rule. The result is usually harsh.
Ex. En re^ir á costa ajena, les prepara.
(c) If an accented strong vowel precedes a weak, they form a diphthong. The diphthong is rarely dissolved, and is usually marked with a diaresis, if dissolution takes place.
Ex. Beso del aura, onda de luz, p. 170, XV, l. 5.
(d) If an accented strong vowel follows a weak they may or may not form a diphthong.
Ex. Por una sonrisa, un ci^elo, p. 172, XXIII, l. 2. [Diphthong.]
Ex. Domando el rebelde, mezquino idï|oma, p. 164, I, l. 6. [No diphthong.]
Diaeresis or synaeresis may usually be employed according to the case.
Thus, fiel becomes by diaeresis fi|el, and br|ioso becomes by synaeresis bri^oso.
It should be remembered that in some words the accentuation is variable, while in others it is fixed.